The cover illustration & title don't match any of the comic's stories.
Other title on cover: Slave Galley of the Lost Nile
Princess Valla previously appeared in "Beyond the Ju-Ju Mists" in Jungle Comics #88 (July 1947).
Title from cover. First line: "Sometime in the dim past, Kaänga had ventured into those mysterious lands beyond the Juju Mists."
Title from cover. First line: "I will make beasts human! And here in the jungle, no one will ever stop me!"